import java.sql.SQLException;

public class Textnn {
    public static void main(String[] args) throws SQLException {
//        javaLeann javaLeann = new javaLeann("root","123456","testdb");
//        javaLeann.add("insert into student values (?,?,?,?,?)");
//        javaLeann.delete("delete from student where name=?");
//        javaLeann.update("update student set age=? where name=?");
//        javaLeann.select("select * from student");
    }
}
